213010121100 has 288 divisors, whose sum is σ = 730579239936. Its totient is φ = 46901376000.

The previous prime is 213010121041. The next prime is 213010121111. The reversal of 213010121100 is 1121010312.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7834129 + ... + 7861271.

It is an arithmetic number, because the mean of its divisors is an integer number (2536733472).

Almost surely, 2^213010121100 is an apocalyptic number.

213010121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213010121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365289619968).

213010121100 is an abundant number, since it is smaller than the sum of its proper divisors (517569118836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213010121100 is a wasteful number, since it uses less digits than its factorization.

213010121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27305 (or 27298 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 213010121100 its reverse (1121010312), we get a palindrome (214131131412).

The spelling of 213010121100 in words is "two hundred thirteen billion, ten million, one hundred twenty-one thousand, one hundred".